[][kernel][mt7986][eth][Fix high CPU utilization issue for the ADMAv1 RSS]

[Description]
Change RX interrupt source to RX_DLY_INT for the ADMAv1 RSS.

Without this patch, the kernel may experience high CPU utilization
due to RX_DONE_INT.

[Release-log]
N/A


Change-Id: Ia897be6164fe448e621c53215f97dabffdf5dde3
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8068214
1 file changed